Publications by authors named "Y N Ivanova"

Objectives: The aim of this study is to assess the clinical outcome and mid-term efficacy of ultrasound-guided high-intensity focused ultrasound (USgHIFU) as a treatment for symptomatic uterine fibroids at two major European HIFU centers.

Materials And Methods: This bi-center longitudinal clinical study involved the treatment of 100 patients with symptomatic uterine fibroids using USgHIFU (n = 59 in Germany, n = 41 in Bulgaria). Clinical outcomes were evaluated at 6 weeks, 6 months, and 1 year follow-up utilizing the uterine fibroid symptoms-quality of life questionnaire for fibroid-related symptoms and health-related quality of life as well as MRI imaging for determining the fibroid volume.

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Purpose: The primary aim of this study was to develop an open-source Python-based software for the automated analysis of dynamic cell behaviors in microphysiological models using non-confocal microscopy. This research seeks to address the existing gap in accessible tools for high-throughput analysis of endothelial tube formation and cell invasion in vitro, facilitating the rapid assessment of drug sensitivity.

Methods: Our approach involved annotating over 1000 2 mm Z-stacks of cancer and endothelial cell co-culture model and training machine learning models to automatically calculate cell coverage, cancer invasion depth, and microvessel dynamics.

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Introduction: Melatonin and serotonin can influence certain aging processes in the ovaries. The main melatonin receptors are represented by types MT1 and MT2. The goal of investigation.

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Article Synopsis
  • - The study aims to explore various prognostic factors like age, hormonal status, histological results, and lesion characteristics that influence the outcomes of patients undergoing LLETZ treatment for cervical precancerous lesions.
  • - Conducted between January 2017 and July 2021, the prospective study involved 189 patients and highlighted significant correlations between targeted biopsy results and colposcopic diagnoses concerning the final histological results after the LLETZ procedure.
  • - Findings indicate that factors such as cervical lesion size and type are crucial in predicting the histological outcome, with larger lesions linked to higher risks of HSIL and cervical cancer.
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The catalytic performance of LaFeNiO perovskites prepared by the Pechini method was studied in the high-temperature decomposition reaction of nitrous oxide at temperatures of 750-900 °C. The samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), adsorption () and hydrogen thermo-programmed reduction (H-TPR) methods. The prepared single-phase solids with specific surface areas of 4.

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